Waste receiver for cylinder finishing machines



July 3, 1934. c. o. HANE WASTE RECEIVER FOR CYLINDER FINISHING IVICHIIE'JS 2 Sheets-Sheet l Filed April 22, I1932.

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JUEY 3 1934 v c. o. HANE 1,965,076

WASTE RECEIVER FOR CYLINDER FINISHING MACHINES Filed April 22, 1932 2 Sheets-Sheet 2 Jwg@ Patented July 3, i934 UNIT WASTE RECEIVER FOR CYLINDER FINSHNG MACHINES Carl O. Hane, Minneapolis, Minn., assignor to Storm Manufacturing Co., Inc., Minneapolis, Minn, a corporation of Minnesota Application April 22, 1932, Serial No. 606,822

10 Claims.

lvy invention provides a much needed and highly eiiicient device herein designated as a waste receiver, for use to catch the waste material, that is chips, grindings or dust removed from engine V cylinders in re-boring, grinding or honing or other finishing operations. Hitherto it has been the common practice to allow the chips, grindings and dust removed from the cylinders in the above noted operations to drop into the crank shaft casing; and it has been very difficult to remove these waste materials thus dropped into the crank shaft casing and in fact the lighter metallic particles can not be completely removed and will ultimately be mixed into the oil, which 15 is not only undesirable but damaging to the engine.

This improved waste receiver includes a diametrically expansible and contractible basket or receptacle which, lwhen contracted, is insert- 29 able downward through the cylinder and after it is passed below the cylinder, is arranged to be expanded into good Contact with the crown of the crank shaft lcasing and there held where it will catch all of the 'chips or grindings and positively prevent any thereof dropping into the Crank shaft casing. After the cylinder has been completely nished, the basket can be contracted and removed with all of the chips, metal dust or other waste material cut from the cylinder in the boring or finishing operation. The invention involves certain other highly important features as will hereinafter appear in the description of a commercial form of 'the device, illustrated in the accompanying drawings wherein like characters indicate like parts throughout `.the Vseveral views.

Referring to the drawings:

Fig. 1 is a vertical section with some parts broken away showing portions of an engine cylinder, crank shaft casing and crank shaft and illustrating the improved waste receptacle applied in operative position;

Fig. 2 is a plan view of the waste receiver. some )parts being broken away and some parts being indicated by dotted lines;

Fig. 3 is a fragmentary section taken on the line 3 3 of Fig. 2;

Fig. 4 is a fragmentary section taken on the line 4-4 of Fig. 2;

Fig. 5 is a perspective showing one of the basket-expanding elements;

Fig. 6 is a view corresponding to Fig. 1, but showing the parts on a larger scale and showing various parts of the basket-supporting structure in section;

Fig. 7 is a horizontal section taken on the line '7V-7 of Fig. 6;

Fig. 8 is a perspective showing one of the elements of the anchoring fork; and

Fig, 9 is an elevation with parts broken away showing a key for operating the cam of the improved device.

Of the parts of the engine structure illustrated, the character a indicates the cylinder, character b the crank shaft casing and the character c the crank shaft. The body 10 of the expansible and contractible basket is made of flexible material, such as canvas, preferably treated with parafne or the like to make the same impervious to oil. The lower central portion of this basket is secured to a metallic head l1 preferably formed with a `separately formed top plate secured thereto by rivets 13 or the like.

The head 1l is provided with an axially depending stem made up of two telescoped sections 14 and l5. The plunger-acting section l5 is provided with a projection in the form of a screw 1 6 that works in a longitudinal slot of the tubular section 14 and is yieldingly pressed downward by a coiled spring 18, locatedl within said tubular section 14 and re-acting against the same and 4 the upper Yend of the plunger-acting member 1,5. The tubular section 1,4, as shown, is rigidly `secured to a depending hub of the head 1 1 by means of a pin v19, At its lower end, the stem section t of the plunger 15 is provided with an adjustable anchoring fork that is adapted to straddle or embrace the crank shaft c and anchor thefstem, head and basket against rotation. As shown, this anchoring fork comprises two L-shaped metal I clips 2O having overlapped ends formed with slots 21 that engage a flattened portion 22 of the stem member 15. The nut 23 on the reduced threaded end of plunger 15 rigidly secures the members in properly set adjustments. lA plurality of basket-supporting arms 24, as shown as L-shaped in side elevation, have their lower portions mounted for sliding movements in radial slots 25 formed in the head 11. The upper ends of these arms 24are attached to the` intermediate portions of .overlapped rim-forming segments 26 that are of light spring metal. The upper edge ,of the basket 10 Lis also secured to the rim-forming segments 26 andare folded outward and downward in the form of a hem 27,

in which is placed an endless coil joint-forming spring 28. The above noted connections may be in various different ways but are preferably made by the simple use of copper or other soft metal split rivets 29 passed through the upper ends of the arms 24 through the intermediate portions of the rim segments 26 and through the lower portion ofV the hem 27 and also through washers 30, see particularly Fig. 4, by reference to which it will be noted that the rim segments 26 are further securedA to the arms 24. by permanent rivets 31.

With this arrangement it is a simple matter to remove the soft split rivets 29 to detach the. flexible basket whenever it requires cleaning or replacement. The overlapped ends of the resilient rim segments 26 are shown as held' in close sliding contact by means of lightl metal retaining clips 32.

Mounted within the head 11 directly over the inner ends of the arms 24 is a disk-like cam 33 shown as secured to a short rotary hub forming shaft 34 to which it is shown as secured by a key 35, see Figs. 6 and 7; IThev lower end' of the hubfformillg Shaft 34 is axially aligned with the head 11 and, as shown, is seated in the depending hub portion thereof'. The upper end of the hub 34 projects through the plate 12 and as shown is provided with a diametrical projecting pin 36 and adapted to be engaged and operated by a wrench or tool such as shown by dotted lines in Fig. 1 and in part by full lines in Fig. 9. This wrench 37, at its lower end, is provided with a recessed head having pin engaging notches 33 and at its upper end said wrench will be provided with a suitable cross bar or hand-piece, such as indicated by dotted lines marked 39 in Fig. 1.

For each arm 24 the cam 33 is formed with a spiral cam groove 39 that engages the pin 40 on the cooperating arm, see particularly Figs. 6 and 7. In the' drawings 4I have shown four arms 24 and hence the cam 33 is provided with four of the spiral cam grooves.

Operation The use of this improved device is probably obvious from the foregoing statements but may be brieflysummarized as follows: when the cam 33y is Arotated vin a counter-clockwise direction in respect to Fig. 7, arms 24 will be moved inward and the basket will be diametrically contracted so. that it may be passed through the cylinder either to or from operative position. After it has been placed below the cylinder the arms will be'forced outward and the basket expanded by rotation of the cam 33 in a clockwise direction` in respect to Fig. 7. This expansion of the basket, when below the cylinder, may be readily accom;- plished by manipulation performed above the cylinder through the use of the wrench 37 appliedl inan obvious manner and as illustrated. The basket should be so expanded that the hem 37;l containing the joint-forming spring 28 and also the rim 26 will be immediately below` the under-Y cut shoulder formed at the top of the crank shaft casing, seel Figs. 1 and 6. Normally the top of the spring-enclosing hem 27 will be slightly above the rim 26 so that it may be pressed into tight and close engagement with the flanged top of the crank shaft casing.

'v The forked end of the stem will be caused to straddle the crank shaft and when thus applied the spring 18 will keep the upper edge of the basket firmly pressed against the ilanged top of the crank shaft casing. This spring also will compensate for or adapt itself to varying distancesbetween the crank shaft and the cylinder. When the crank shaft varies much in size the anchoring members can be re-adjusted, although any very close fit isnot required since the function of the saine is to hold the stem against rota-- tion and for re-action against the crank shaft.

Obviously, this basket, positioned as shown and described, will catch all of the chips, grindings or dust removed from the cylinder either by re-boring, grinding or honing action and after the cylinder has been iinished the basket with the waste material may be readily removed simply by contracting the basket and moving the same upward throughY the cylinder. Preferably the notches 38 in the wrench 37 are formed as shown in Fig. 9 so that they will keep good engagement with the pin 37 both when the basket is being placed in position and when it is being removed.

From the foregoing it is evident that the im proved device described is capable of various modifications, all within the scope of the inveni tion herein disclosed and claimed.

What I claim is:

1. A waste receiver for cylinder boring and/or finishing machines, comprising a diametrically expansible and contractible basket of flexible material, a diametrically expansible and contractible metallic rim attached to the marginal edge of said basket, a head to which the lower central portion of said basket is attached, diametrically movable arms mounted in said head and attached to said expansible rim, a cam-acting member mounted on said head and operative on said arms to extend and withdraw the same, and means for rotating said cam when said basket is applied below a cylinder.

2.v A waste receiver for cylinder boring and/or finishing machines, comprising a diametrically expansible and contractible basket of flexible material, a diametrically expansible and contractible metallic rim attached to the marginal edge of said basket, a head to which the lower central portion of said basket is attached, diametrically movable arms mounted in said head and attached to said expansible rim, a cam-acting member mounted on said head and operative on said arms to extend and withdraw the same, means for rotating said cam when said basket is applied below a cylinder, and a stern depending from said head and engageable with an underlying crank shaft to support said basket in an expanded position below the cylinder.

3. Thev structure dened in` claim 2 in which said stem is providedvv at its lower end with a fork engageable with the crank shaft tohold said head and basket against rotation when said cam is rotated to expand or contract the basket.

4. The, structure defined in claim 2 in which said stem is axially extensible and is provided with a yielding element tending to extend the same.

5j. The structure diened in claim 2 in which', said stemisV provided at its lower endwith a fork engageable with the crank shaft to hold said head and basket against rotation when said cam is-rotated to expand or contract the basket, said stem being axially extensible and having a yielding. element tending to extend the same.

6. A waste receiver for cylinder boring and/or finishing machines comprising a supporting sternprovided with a head at its upper end, a flexible basket attached to said head, rim supporting arms movably mounted in said head, an expansible rim made up of overlapped sections attached to said arms and to theupper edge of said basket, and a cam mounted on said head and operative on said arms to expandand contract said basket.

7. The structure defined in claim 6 in which 150 rality of spira Gam grooves operative one on each of said arms.

10. The structure dened in claim 6 in which the upper edge of said basket is provided with an endless coiled joint-forming spring and is folded around said spring.

CARL O. HANE. 

